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Home › Can I swap? › CR123A vs 123
Can I swap?

CR123A vs 123: can you swap them?

1The short answer2Both ways3Differences4Buy it5Learn more
  1. 1

    The short answer

    YesYes, they’re the same batteryCR123A and 123 are two names for the exact same battery. Use either one.
    CR123A
    CR123AShort and chunky, about 3.5 cm long
    CR123A
    123Short and chunky, about 3.5 cm long
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  2. 2

    Both ways round

    Can I put 123 where CR123A goes?Yes
    Can I put CR123A where 123 goes?Yes
  3. 3

    What’s different

    CR123A123
    SizeShort and chunky, about 3.5 cm longShort and chunky, about 3.5 cm long Same
    LengthShort and chunky, about 3.5 cm longShort and chunky, about 3.5 cm long Same
    Power3 volts3 volts Same
    KindCamera & alarm batteryCamera & alarm battery

    Lasts longer: Same

  4. 4

    Where to buy CR123A

    As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

    Our pickThe exact match, 4-packEnergizer CR123A 3.0V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerCR123A 3.0V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell DL123A, the same batteryDuracell DL123A / CR123A 3.0V Battery
    Check Price on Amazon →

    Buttons open amazon.com 🇺🇸, picked from your country.

    Get 123 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.
  5. 5

    Learn more

    About CR123AAbout 123Check another pair
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Questions people ask

Can I use 123 instead of CR123A?

Yes. CR123A and 123 are two names for the exact same battery. Use either one.

Can I use CR123A instead of 123?

Yes. CR123A and 123 are two names for the exact same battery. Use either one.

Which one lasts longer?

They last about the same.

All the numbers

CR123A123
Diameter17.0 mm17.0 mm
Height34.5 mm34.5 mm
Nominal voltage3.0V3.0V
Typical capacity1500 mAh1500 mAh
ChemistryLithium manganese dioxideLithium manganese dioxide
Shelf life10 yrs10 yrs
Operating temp-40 to 60 °C-40 to 60 °C
Can I use 123 instead of CR123A?Yes
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1The short answer2Both ways3Differences4Buy it5Learn more